CST - SAR Analysis in cst studio

Hi, 

I want to do SAR analysis of a mimo antenna at 28 GHz on a voxel body. I am facing problem related to less RAM. Unfortunately I dont have access to high GB ram and i have to do it on my laptop whic is 16GB. Is there any way to do it with this amount of RAM? I have done SAR analysis on layered tissue model but i want to do it a voxel body for better results. Thank You in advance

CST Studio Suite ​​​​​​​